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Answer to Question #19098 in Inorganic Chemistry for yaw

Question #19098
calculate the pH of the solution formed by mixing 10.0ml of 0.15M HBr with 20.0ml of 0.25M HCl
Expert's answer
concentration of [H+] (from HBr and HCl)

n(H+) = 0.15*10/1000 + 0.25*20/1000=0,0065 mol in 30 ml

x mol in 1000 ml

x=0.217
[H+]=0.217M

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